You need to calculate the number of days from 1st January 2007 till date . Dates are stored in the default
format of dd-mon-rr. Which two SQL statements would give the required output? (Choose two.)
A.
SELECT SYSDATE – ’01-JAN-2007′ FROM DUAL:
B.
SELECT SYSDATE – TOJDATE(X)1/JANUARY/2007″) FROM DUAL:
C.
SELECT SYSDATE – TOJDATE(’01-JANUARY-2007′) FROM DUAL:
D.
SELECT TO_CHAR(SYSDATE. ‘DD-MON-YYYY’) – ’01-JAN-2007′ FROM DUAL:
E.
SELECT TO_DATE(SYSDATE. *DD/MONTH/YYYY’) – ’01/JANUARY/2007′ FROM DUAL:
B. SELECT SYSDATE – TO_DATE(’01/JANUARY/2007′) FROM DUAL;
C. SELECT SYSDATE – TO_DATE(’01-JANUARY-2007′) FROM DUAL;
alter session set nls_date_languAge=’ENGLISH’;
alter session set nls_date_format=’dd-month-yyyy’;
select sysdate – to_date(’01/JANUARY/2007′) from dual;
select sysdate – to_date(’01-JANUARY-2007′) from dual;
B,C
It’s B & C, other ones don’t have the same data type